Question 11 MarkThe base of an isosceles triangle is $x cm$ and its side $y cm$. Find its area.Answer$ \frac{x}{2} \sqrt{y^2-\frac{x^2}{4}} $View full question & answer→
Question 21 MarkIf the sides of an equilateral triangle increase three times then how many percent increases in its area?Answer$800\%$View full question & answer→
Question 31 MarkThe perimeter of a triangular field is 144 m and its sides are in the ratio $3: 4: 5$. Find the area of the field.Answer$ 864 cm^2 $View full question & answer→
Question 41 MarkThe length of an altitude in an equilateral triangle is $h cm$, then find its area.Answer$ \frac{h^2}{\sqrt{3}} cm^2 $View full question & answer→